Their quality sucks! I bought 3 kits for the 78 super 6 BBD. Bought one at Autozone and 2 at Advanced Auto.

None had the gauge to check the float height! I had one left from a 65 BBD kit.

One had 2 accelerator pumps.

1 kit the bowl top gasket was too wide and had to be trimmed to line up properly. (It did come with 2 exactly alike)

Can't say as I would want to buy more if I have a choice.

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'72 Duster 198 stock cam, 3:23's Hookers on jack stands for 8 years in the driveway
'79 Maxivan 360 Offy Qjet Comp RV cam/rusting in the driveway.
93 D350 160HP Cummins Auto Dually Clubcab needs a injector pump
2005 Golden Couch Buick

iv used napa echlin kits the three times i did my bbd's. only problem i had was an accelerator pump lip fold over and a couple times the emulision tubes that are held in place by two screws (also holds the venturies and pump nozzles iirc) plugged up with some kinda material... looked like a coating off the floats or something just my 0.02

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1975 Plymouth Duster,225/6 2bbl. and duels, 904, 7 1/4
1986 Dodge Charger Shelby, 2.2 Turbo I, A525

GP Sorenson is now Standard Motor Product's 'bottom of the heap' line.
I've used two of these kits, one for a Holley 2245 (yep didn't work to good 15 years ago, either), and a few years back I purchased one for a Holley 2300 (worked OK, but the Holley Kit was of muuuch better quality...)

LOL...

-D.Idiot